The Clairvoyant Zoopraxiscope

If you're thinking something, chances are someone else is thinking it too.
If you're eating something, chances are someone else is eating that same food.
If you're hitting something, chances are someone else is hitting something too.
If you're looking at something, chances are someone else is looking at something too.
If you're drinking a glass of room-temperature water, chances are someone else, somewhere on Earth, is also drinking a glass of room-temperature water.
If you are missing a train, chances are someone else is missing a train too, some train.
If you are rowing in the middle of an empty lake, chances are someone else is also rowing in the middle of an empty lake, lake empty, completely empty, of fish.
If you are singing loudly, chances are someone else is singing loudly.
If you are constructing a magnetic coil, chances are someone else is constructing a magnetic coil too.
This is not to imply you are unoriginal, just that you are human.
If you are human, and you know it, chances are someone else is human, and they know it.
If you are teaching someone something, chances are someone else is teaching someone something, somehow the work gets done.
If you are feeling lonely, chances are someone else is feeling lonely too.
If you are smiling, chances are someone else is smiling too, somehow. Though you don't know each other.
If you are dragging your vanquished foe seven times around a sacked city, chances are someone else is dragging their vanquished foe seven times around a sacked city as well.
If you are asking a muse to speak, chances are someone else is asking the muse to speak as well.
If you are, chances are someone else is, as well.
This can either be taken as a reason for relief, or concern.